Plz help. Thank you!

Answers

Answer 1

Answer: The new surface area will be 9 times the old surface area.

So A or #1

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Is there 2 square numbers that add up to 65

Answers

$1^(2) + 8^(2) =1+64=65$

Im thinking there are two ways....
8² +1² = 8 * 8 + 1 *1 = 64 + 1 = 65
7² + 4² = 7 * 7 + 4 * 4 = 49 + 16 = 65

The two-way table shows the number of girls and boys who are right-handed or left-handed. What percent of left-handed people are girls? % Right-handed Left-handed Girls 8 2 Boys 9 2

Answers

There are a total of 4 left-handed people.
2 left-handed people are boys.
2 left-handed people are girls.

2/4 = 50%

50% of the the left-handed people are girls.

______________________________
| | Right-handed | Left-handed|
|------------------------------------------------------|
|Girls | 8 | 2 |
|------------------------------------------------------|
|Boys | 9 | 2 |
|_____|_____________|__________|

What percent of left-handed people are girls?

There are a total of 4 left handed people, 2 of which are girls.

2/4 = 1/2 = 50%

50% of left-handed people are girls.

What is 9.15 divided by 9

Answers

1.01666667.....,..............

9.15 divide by 9

so first you do 9 divide by 9 will be 1

then you put the decimal after 1 .

then you divide 1 by 9 that would be 0, then you put down 5 then it will 15 divide by 9 so 15 . fifteen goes into 9 one time so the rest will the rest will be 6 .

if you type it on the calculator the answers will be this 1.01666666667. just type it on the calculator on google.

Solve each system of linear equations by multiplying { -2x + 2y = 2
{ -4x + 7y = 16

Answers

Answer:

$x = 3 \n y = 4$

Step-by-step explanation:

$x = - 1 + y \n - 4x + 7y = 16 \n \n - 4( - 1 + y) + 7y = 16 \n \n y = 4 \n \n x = - 1 + 4 \n \n x = 3$

Write a real-world problem that could be represented by the following inequality.70 + 5x < 30 + 15x

Answers

Jack wants to paint his house. he collected quotations from two different painters. The first painter's total cost in terms of the number of hours (x) worked was modelled as f(x) = 70 + 5x, while that of the second painter was g(x) = 30 + 15x. Jack knows that it will take more than 4 hours to paint the house so he decided to go with the first painter whose cost is cheaper when the number of hours is above 4 hours.

Ginny has 16 chocolate bars. She gives away ¾ of her chocolate bars to friends. How many chocolate bars did Ginny give away? Record your answer as an improper fraction (fraction greater than one) or a whole/mixed number.

Answers

Answer:

She gave away 12, so she still has 4.

Step-by-step explanation:

16 times .75 equals 12.

Answer: Ginny gave away 12 chocolate bars

Step-by-step explanation: if 16 is 4/4, and 16/4=4, then you multiply 4x3 to figure out that 3/4=12/16

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